How Can I Deserialize JSON with Dynamic Keys in C#?

Handling JSON deserialization of dynamic keys in C#

When processing JSON data, encountering dynamic keys can cause deserialization challenges. Consider the following JSON string:

{
    "daily": {
        "1337990400000": 443447,
        "1338076800000": 444693,
        "1338163200000": 452282,
        "1338249600000": 462189,
        "1338336000000": 466626
    }
}

In this string, the "daily" key is static, but the underlying key is dynamic and cannot be predicted when deserializing. To solve this problem, we can take advantage of the power of dynamic objects.

Using the JavaScriptSerializer class, we can create a dynamic object as shown below:

dynamic deser = new JavaScriptSerializer().Deserialize<dynamic>(val);

This deserialization will create a dynamic object deser which can access JSON properties. To access daily data we can use the following statement:

dynamic justDaily = deser["daily"];

The

justDaily object now represents daily data and its dynamic keys can be accessed. To iterate over the keys and their values ​​we can use the following code:

foreach (string key in justDaily.Keys)
    Console.WriteLine(key + ": " + justDaily[key]);

This will output the dynamic keys and their corresponding values. By using dynamic objects, we can efficiently deserialize JSON data even when dynamic keys are encountered.

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